LG CG225 Service Manual page 34

3.5.8. Charging
Charging block in ABB processes charging operation by using VBAT, ICHG value through ADC
channel. Battery Block Indication and SPEC of CG225 is as follow.
4.2V~3.87V
1. Charging method: CC-CV
2. Charger detect voltage: about 5.2V
3. Charging time: 3h under
4. Icon stop current: 120mA
5. Charging current: 550mA
6. CV voltage: 4.2V
7. Cutoff current: 30mA
8. Full charge indication current (icon stop current) : 100mA
9. Recharge voltage: 4.16V
10. Low battery alarm
a. Idle: 3.55V
b. Dedicated: 3.59V
11. Low battery alarm interval :
a. Idle: 2min
b. Dedicated:1min
12. Power-off voltage without TA : 3.35V
Power-off voltage with TA : 2.80V
13. Charging temperature ADC range
a. ~ -5°C : small charging operation.
b. -5°C ~ 50°C : charging.
c. 50°C ~ : small charging operation.
3.86V~3.75V
Figure 15. Battery Block Indication
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3. H/W Circuit Description
3.74V~3.68V
3.67V~3.60V